Glass cutter



July 5,1927. A 1,634,323

A. T, FLETCHER GLASS CUTTER Filed Jan. 1'7. 1927 y .1,634,323 PATENT OFFICE.

ARTHUR TERRYv FLETCHER, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE FLETCHER- TERRY COMPANY, OF FORESTVILLE, CONNECTICUT, .A CORPORATION.

GLAss CUTTER.

Application led January 17, 1927.

My invention relates to improvements in glass-cutters, having particular relation toy the detail of supporting the cutter wheel, and the object of my improvement is to provide means for operatively supporting the cutter wheel that permit of readily removing the cutter wheel from the frame or supporting body, as for replacement by a new cutter or the like, and thus serving to permit of providing cutters independent of and separate from the frame or body and supplying a plurality of cutters for each frame or body.

1n the accompanying` drawing Figure 1 is a side elevation of a glasscutter corresponding to the hand device of standard form and in which the cutter supporting means correspond to my invention.

Figure 2 is a plan view on an enlarged scale of the cutter and adjacent parts.

Figure 3 is a plan view of the cutter and wire support.

Figure 1 is a similar view of the same before bending the wire.

Figure 5 is a similar view of the same after bending the wire and before reducing the outer face portions of the supporting legs.

Figure 6 is a sectional view on the line (S-6 of Fig. 2.

Figure 7 is a side elevation of a pilla-r post for use in cutting circular pieces of glass and in which the cutter support is in accordance with my invention.

Figure 8 is another view of the same.

Figure 9 shows my invention embodied in a cutter frame for use in cutting gauge glasses or tubing.

Figure 10 is an enlarged View of the cutter and support.

Figure 11 is a sectional view on the line 11-11 of Fig. 10.

My improved glass-cutter as pertains to the substantially standard form of cutter that is used for ordinary hand operation comprises a cutter wheel or cutter 10 that projects outwardly beyond one end 11 of the cast body 12 and at the other end of which is the handle 13. The cutter 10 is operatively supported by means of a diminutive shaft 14 of wire and the invention in the present instance pertains to this particular detail.

Said shaft 14 is virtually the yoke portion of a U-shaped structure 15 of wire and serves Serial No. 161,531.

to inter-connect the ends of the side arms 16. The body 12 is grooved or recessed to admit the major portion of said U-shaped structure 15. Thus at the sides are the grooves 17 in the outer faces 18 of the body 12 for the side arms 16 and at the end is the crossgroove 19 for the outer ends of the shaft 14, the latter being interrupted by the slot 2O for the inner portion of the cutter 10.

Under normal conditions the cutter is held in place by reason of the resiliency of the U-shaped wire structure 15 and under conditions of use the pressure applied to the cutter is such as to retain the parts in place, and the cutter and support are readily removable for replacement or the like. Also, while removed from the body the cutter remains in place on the wire 15. Said wire is initially'lin the form of a straight piece of wire that is inserted in the o ening in the cutter and is then bent to the shape.

Finally, in order to permit of the use of a relatively shallow groove 17 and at the same time keep within the limits of the standard form as to thickness, the outer side face portions of the legs or arms 16 may be ground od, leaving flat side face portions 21.

In the application to the pillar post 12a shown in Fig. 7 that is used in machines for cutting glass discs and which is substantially a rod-like structure the cutter 10a is supyported in the grooved end portion 11a by the U-shaped structure 15a of wire in a manner similar to that already described. In this instance it may be noted that there would usually be no need of grinding oif the outer side faces of the supporting arms 16a so that the cross-section of said arms would conform to that of the full size of the wire.

Some difference in detail would be involved in the application of the invention to the gauge cutter 25 that is used for cutting glass tubing 26 into lengths for use in glass gauges and the like and in which devices there is provided an elongated body 12b for insertion within the tubing. The cutter 10b is supported by the body 12b and the cutting is done on the inner face of the tubing wall.

The body 12b has the cross-slot 20" for housing the inner portion of the cutter 10. The cross-groove 19b is provided that eX- tends across the slot 20b and which extends in the longitudinal direction of the body 12". The cutter shaft 14; is housed in the cross-groove l9) and the arins 1Gb of the U-shaped structure 15b are entered into suitable holes 17 in the body 12h.

Thus, described, the operation ot the unit composed of the Cutter and the U- shaped support is substantially the saine in all of the different forms that are shown and described. Also, generally, cutters that are adapted tor one torni will also be usable in any of the others.

T Claiin as iny invention l. In a glass-Cutter, a body he ring a slot, a dise-like cutter entered in said slot and having an opening. a shaft oft Wire entered through said opening, arms extending from the ends ot' said shaft and forming therewith a U-shaped structure, and said body having ineans for operatively housing the portions of said "kJ-shaped structure that are exterior to said Cutter.

2. A unit 'for use in a glass-cutter coinprising a dise-like cutter having an opening and a U-shaped structure of Wire comprising a pair of laterally spaced arms that are cross-connected by means of a yoke, and said yoke being entered through said opening so as to be adapted to serve as al shaft for said cutter.

ARTHUR TERRY FLETCHER. 

